Christmas tree stand



FIG. 1 is a top perspective view of the Christmas tree stand showing my new design;

FIG. 2 is a top plan view showing my new design;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for Christmas tree stand, as shown and described. 